Billing code 35881: Bypass revisionMedicare rate & RVUs in Delaware
Reports revision of a lower-extremity arterial bypass using a vein interposition graft when the operation does not include thrombectomy.
CMS doesn’t publish an office rate for 35881 in Delaware.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 9 sections
What 35881 covers
A vascular surgeon uses this service to revise a lower-extremity arterial bypass by replacing a portion of the graft with vein. It addresses a graft segment that needs reconstruction, rather than a procedure limited to removing clot. The operation is generally performed in a hospital or other surgical setting; the operative report should identify the bypass, the segment revised, and the vein used.
Report the code when the documented revision uses vein interposition and does not include thrombectomy. If the surgeon also removes graft clot while revising the graft, compare the combined thrombectomy-and-revision code. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures are performed in one session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. For bilateral procedures reported with modifier 50, CMS pays 150%. Assistant-at-surgery payment may be allowed; co-surgeon payment requires supporting documentation, and team-surgery payment is not permitted.
This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.
35881 in Delaware
| Payment locality | Office | Facility |
|---|---|---|
| Delaware | Unavailable | $919.91 |
How the 35881 rate is calculated
Each of 35881’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.
How the rate is built · 35881
RVUs × geographic indexes × conversion factor
Work18.87
18.87 RVUs× 1.000 GPCI
Practice expense4.35
4.35 RVUs× 1.000 GPCI
Malpractice4.76
4.76 RVUs× 1.000 GPCI
Adjusted RVUs
27.9800
Conversion factor
$33.4009
Medicare rate
$934.56
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 35881
35881 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 35881
Bypass revision
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 090 | Major surgery: the day before, the day of, and 90 days after are included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 1 | Bilateral with modifier 50 pays 150% of the fee schedule amount. |
| Assistant at surgery (80/81/82/AS) | 2 | Paid. |
| Co-surgeons (62) | 1 | Permitted with supporting documentation. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.09/0.84/0.07 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 35881
Bypass revision
90-day global period ends
Dec 30, 2026
Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).
Visit on Oct 31, 2026
Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.
Pre-op dayGlobal period
What modifiers do to the payment
Modifier 50 · payment effect
With and without the modifier
35881 without 50 · national facility
$934.56
Bypass revision
35881-50 · Bilateral: 150%
$1,401.84
Both sides on one line with modifier 50 are paid at 150% of the fee schedule amount (subject to multiple-procedure rules with other procedures).
35881 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 35879Bypass revision
- Both revise a lower-extremity arterial bypass without thrombectomy. Choose 35881 for vein interposition and 35879 for patch angioplasty.
- 35876Graft thrombectomy
- 35876 describes open thrombectomy performed with graft revision. Use 35881 when the revision is performed without thrombectomy.
- 35883Graft revision
- 35883 is specific to revision of a femoral anastomosis using a nonautogenous graft; 35881 describes lower-extremity bypass revision using vein interposition.
- 35884Graft revision
- 35884 is specific to revision of a femoral anastomosis using an autogenous vein graft. 35881 describes bypass revision using vein interposition.
35881 billing questions
How is this different from 35879?
35881 describes bypass revision using a vein interposition graft. 35879 is the patch-angioplasty approach to lower-extremity bypass revision.
Can this be reported when the surgeon removes clot?
This code describes revision without thrombectomy. When thrombectomy and graft revision are both performed, compare 35876, which describes the combined service.
What documentation supports reporting 35881?
The operative report should identify the lower-extremity arterial bypass, the segment revised, and the use of vein as an interposition graft. It should also clarify whether thrombectomy was performed.
Are related postoperative visits included?
Yes. The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
How does CMS handle multiple procedures in the same session?
The highest-valued procedure is paid in full, and other procedures are subject to the standard 50% multiple-procedure reduction.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery payment may be allowed. Co-surgeon payment requires supporting documentation; team-surgery payment is not permitted.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.
CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027
Show the CMS file lines behind this rate
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